Paste over shadow block only works on the second attempt via menu

[microbit-matt-hillsdon]

1. Load or reload the demo
2. 'T' to open toolbox
3. p5 blocks
4. Copy random colour via e.g. Cmd+C
5. Navigate to the colour block
6. Paste via the menu
   • It works fine via the shortcut
7. Note it pasted on the workspace
8. Try again, note it works

Screen.Recording.2025-03-03.at.09.29.46.mov

[rachel-fenichel]

Is this a blocker for testing?

[microbit-matt-hillsdon]

We'd like to fix this if possible but not a blocker. I'm investigating a little now. It's not limited to shadow blocks:

[microbit-matt-hillsdon]

I think my image above was an unrelated issue.

[microbit-matt-hillsdon]

You can only reproduce this as per the video when you open the toolbox while on a different block then move to the colour block.

The cause is markedNode is not cleared when the toolbox closes due to the copy. Then when the dropdown closes and setCursorOnWorkspaceFocus is called the stale markedNode is set as the current node.

It has nothing to do with shadow blocks. You can get the same bug by opening the toolbox on e.g. a next connection in the other stack.

Possible fix: copyCallback in Constants.STATE.FLYOUT could remove the mark?

So this breaks the copy/paste from flyout flow (with the menu) if you copy then choose the destination. If you position the cursor first it works OK.

[microbit-matt-hillsdon]

This was fixed by #326.